LM4132EMFX-2.5/NOPB

Voltage Reference Overview

The LM4132EMFX-2.5/NOPB is a precision shunt voltage reference from Texas Instruments, providing a fixed output of 2.5V. It features an initial accuracy of 0.05% and a temperature coefficient of 20 ppm/°C. The device operates within an input voltage range up to 5.5V and supports a maximum shunt current of 20mA. It functions in temperatures from -40°C to +125°C with a typical quiescent current of 60µA. Packaged in a compact SOT-23-5 surface-mount format, it includes a shutdown enable feature for power management.

Voltage Reference Feature Summary

• Provides high-precision fixed voltage reference with tight initial accuracy tolerance
• Features low temperature drift characteristics for stable performance across wide thermal ranges
• Integrates a shutdown enable pin to reduce power consumption during inactive periods

Voltage Reference Applications

• Precision data acquisition systems requiring stable reference voltages
• Battery-powered instrumentation benefiting from low quiescent current operation
• Portable medical devices demanding high accuracy in small form factors

Voltage Reference Procurement Notes

Verify the specific suffix 'EMFX' confirms the tape-and-reel packaging variant when ordering. Ensure the design accounts for the 2.5V nominal output and 20mA maximum shunt current limits. Confirm the SOT-23-5 footprint matches the PCB layout requirements. Check that the operating temperature range meets the application's environmental specifications.

Voltage Reference Selection Notes

Select this component when a fixed 2.5V reference is required with 0.05% initial accuracy. It is suitable for applications needing low noise and low temperature drift. Consider the SOT-23-5 package size constraints. Evaluate the 60µA quiescent current against system power budgets. Verify compatibility with the 5.5V maximum input voltage limit.

Voltage Reference Part Context

This part belongs to the LM4132 family of precision shunt voltage references. The series offers various fixed output voltages including 2.0V, 2.5V, 3.0V, and 3.3V options. All variants share similar electrical characteristics and the SOT-23-5 package. The family is designed for space-constrained applications requiring high stability.

Voltage Reference Replacement Considerations

LM4132EMF-2.5/NOPB (Tape & Reel) is the direct equivalent without the FX suffix variation.